Bug Summary

File:tog/../lib/object_create.c
Warning:line 442, column 10
Potential leak of memory pointed to by 'msg'

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd6.9 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name object_create.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/local/lib/clang/11.1.0 -I /home/ben/Projects/got/tog/../include -I /home/ben/Projects/got/tog/../lib -D GOT_LIBEXECDIR=/home/ben/bin -D GOT_VERSION=0.53-current -internal-isystem /usr/local/lib/clang/11.1.0/include -internal-externc-isystem /usr/include -O0 -fdebug-compilation-dir /home/ben/Projects/got/tog/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/got/scan/2021-05-28-230913-68537-1 -x c /home/ben/Projects/got/tog/../lib/object_create.c
1/*
2 * Copyright (c) 2019 Stefan Sperling <stsp@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <sys/types.h>
18#include <sys/stat.h>
19#include <sys/queue.h>
20
21#include <ctype.h>
22#include <errno(*__errno()).h>
23#include <fcntl.h>
24#include <limits.h>
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28#include <stdint.h>
29#include <sha1.h>
30#include <unistd.h>
31#include <zlib.h>
32
33#include "got_error.h"
34#include "got_object.h"
35#include "got_repository.h"
36#include "got_opentemp.h"
37#include "got_path.h"
38
39#include "got_lib_sha1.h"
40#include "got_lib_deflate.h"
41#include "got_lib_delta.h"
42#include "got_lib_object.h"
43#include "got_lib_object_parse.h"
44#include "got_lib_lockfile.h"
45
46#ifndef nitems
47#define nitems(_a)(sizeof(_a) / sizeof((_a)[0])) (sizeof(_a) / sizeof((_a)[0]))
48#endif
49
50static const struct got_error *
51create_object_file(struct got_object_id *id, FILE *content,
52 struct got_repository *repo)
53{
54 const struct got_error *err = NULL((void *)0), *unlock_err = NULL((void *)0);
55 char *objpath = NULL((void *)0), *tmppath = NULL((void *)0);
56 FILE *tmpfile = NULL((void *)0);
57 struct got_lockfile *lf = NULL((void *)0);
58 size_t tmplen = 0;
59
60 err = got_object_get_path(&objpath, id, repo);
61 if (err)
62 return err;
63
64 err = got_opentemp_named(&tmppath, &tmpfile, objpath);
65 if (err) {
66 char *parent_path;
67 if (!(err->code == GOT_ERR_ERRNO1 && errno(*__errno()) == ENOENT2))
68 goto done;
69 err = got_path_dirname(&parent_path, objpath);
70 if (err)
71 goto done;
72 err = got_path_mkdir(parent_path);
73 free(parent_path);
74 if (err)
75 goto done;
76 err = got_opentemp_named(&tmppath, &tmpfile, objpath);
77 if (err)
78 goto done;
79 }
80
81 if (fchmod(fileno(tmpfile)(!__isthreaded ? ((tmpfile)->_file) : (fileno)(tmpfile)), GOT_DEFAULT_FILE_MODE(0100000 | 0000400|0000200 | 0000040 | 0000004)) != 0) {
82 err = got_error_from_errno2("fchmod", tmppath);
83 goto done;
84 }
85
86 err = got_deflate_to_file(&tmplen, content, tmpfile, NULL((void *)0));
87 if (err)
88 goto done;
89
90 err = got_lockfile_lock(&lf, objpath);
91 if (err)
92 goto done;
93
94 if (rename(tmppath, objpath) != 0) {
95 err = got_error_from_errno3("rename", tmppath, objpath);
96 goto done;
97 }
98 free(tmppath);
99 tmppath = NULL((void *)0);
100done:
101 free(objpath);
102 if (tmppath) {
103 if (unlink(tmppath) != 0 && err == NULL((void *)0))
104 err = got_error_from_errno2("unlink", tmppath);
105 free(tmppath);
106 }
107 if (tmpfile && fclose(tmpfile) == EOF(-1) && err == NULL((void *)0))
108 err = got_error_from_errno("fclose");
109 if (lf)
110 unlock_err = got_lockfile_unlock(lf);
111 return err ? err : unlock_err;
112}
113
114const struct got_error *
115got_object_blob_file_create(struct got_object_id **id, FILE **blobfile,
116 const char *ondisk_path)
117{
118 const struct got_error *err = NULL((void *)0);
119 char *header = NULL((void *)0);
120 int fd = -1;
121 struct stat sb;
122 SHA1_CTX sha1_ctx;
123 size_t headerlen = 0, n;
124
125 *id = NULL((void *)0);
126 *blobfile = NULL((void *)0);
127
128 SHA1Init(&sha1_ctx);
129
130 fd = open(ondisk_path, O_RDONLY0x0000 | O_NOFOLLOW0x0100);
131 if (fd == -1) {
132 if (errno(*__errno()) != ELOOP62)
133 return got_error_from_errno2("open", ondisk_path);
134
135 if (lstat(ondisk_path, &sb) == -1) {
136 err = got_error_from_errno2("lstat", ondisk_path);
137 goto done;
138 }
139 } else if (fstat(fd, &sb) == -1) {
140 err = got_error_from_errno2("fstat", ondisk_path);
141 goto done;
142 }
143
144 if (asprintf(&header, "%s %lld", GOT_OBJ_LABEL_BLOB"blob",
145 (long long)sb.st_size) == -1) {
146 err = got_error_from_errno("asprintf");
147 goto done;
148 }
149 headerlen = strlen(header) + 1;
150 SHA1Update(&sha1_ctx, header, headerlen);
151
152 *blobfile = got_opentemp();
153 if (*blobfile == NULL((void *)0)) {
154 err = got_error_from_errno("got_opentemp");
155 goto done;
156 }
157
158 n = fwrite(header, 1, headerlen, *blobfile);
159 if (n != headerlen) {
160 err = got_ferror(*blobfile, GOT_ERR_IO6);
161 goto done;
162 }
163 for (;;) {
164 char buf[PATH_MAX1024 * 8];
165 ssize_t inlen;
166
167 if (S_ISLNK(sb.st_mode)((sb.st_mode & 0170000) == 0120000)) {
168 inlen = readlink(ondisk_path, buf, sizeof(buf));
169 if (inlen == -1) {
170 err = got_error_from_errno("readlink");
171 goto done;
172 }
173 } else {
174 inlen = read(fd, buf, sizeof(buf));
175 if (inlen == -1) {
176 err = got_error_from_errno("read");
177 goto done;
178 }
179 }
180 if (inlen == 0)
181 break; /* EOF */
182 SHA1Update(&sha1_ctx, buf, inlen);
183 n = fwrite(buf, 1, inlen, *blobfile);
184 if (n != inlen) {
185 err = got_ferror(*blobfile, GOT_ERR_IO6);
186 goto done;
187 }
188 if (S_ISLNK(sb.st_mode)((sb.st_mode & 0170000) == 0120000))
189 break;
190 }
191
192 *id = malloc(sizeof(**id));
193 if (*id == NULL((void *)0)) {
194 err = got_error_from_errno("malloc");
195 goto done;
196 }
197 SHA1Final((*id)->sha1, &sha1_ctx);
198
199 if (fflush(*blobfile) != 0) {
200 err = got_error_from_errno("fflush");
201 goto done;
202 }
203 rewind(*blobfile);
204done:
205 free(header);
206 if (fd != -1 && close(fd) == -1 && err == NULL((void *)0))
207 err = got_error_from_errno("close");
208 if (err) {
209 free(*id);
210 *id = NULL((void *)0);
211 if (*blobfile) {
212 fclose(*blobfile);
213 *blobfile = NULL((void *)0);
214 }
215 }
216 return err;
217}
218
219const struct got_error *
220got_object_blob_create(struct got_object_id **id, const char *ondisk_path,
221 struct got_repository *repo)
222{
223 const struct got_error *err = NULL((void *)0);
224 FILE *blobfile = NULL((void *)0);
225
226 err = got_object_blob_file_create(id, &blobfile, ondisk_path);
227 if (err)
228 return err;
229
230 err = create_object_file(*id, blobfile, repo);
231 if (fclose(blobfile) == EOF(-1) && err == NULL((void *)0))
232 err = got_error_from_errno("fclose");
233 if (err) {
234 free(*id);
235 *id = NULL((void *)0);
236 }
237 return err;
238}
239
240static const struct got_error *
241te_mode2str(char *buf, size_t len, struct got_tree_entry *te)
242{
243 int ret;
244 mode_t mode;
245
246 /*
247 * Some Git implementations are picky about modes seen in tree entries.
248 * For best compatibility we normalize the file/directory mode here.
249 * Note that we do not support committing symlinks.
250 */
251 if (S_ISREG(te->mode)((te->mode & 0170000) == 0100000)) {
252 mode = GOT_DEFAULT_FILE_MODE(0100000 | 0000400|0000200 | 0000040 | 0000004);
253 if (te->mode & (S_IXUSR0000100 | S_IXGRP0000010 | S_IXOTH0000001))
254 mode |= S_IXUSR0000100 | S_IXGRP0000010 | S_IXOTH0000001;
255 } else if (got_object_tree_entry_is_submodule(te))
256 mode = S_IFDIR0040000 | S_IFLNK0120000;
257 else if (S_ISLNK(te->mode)((te->mode & 0170000) == 0120000))
258 mode = S_IFLNK0120000; /* Git leaves all the other bits unset. */
259 else if (S_ISDIR(te->mode)((te->mode & 0170000) == 0040000))
260 mode = S_IFDIR0040000; /* Git leaves all the other bits unset. */
261 else
262 return got_error(GOT_ERR_BAD_FILETYPE3);
263
264 ret = snprintf(buf, len, "%o ", mode);
265 if (ret == -1 || ret >= len)
266 return got_error(GOT_ERR_NO_SPACE9);
267 return NULL((void *)0);
268}
269
270/*
271 * Git expects directory tree entries to be sorted with an imaginary slash
272 * appended to their name, and will break otherwise. Let's be nice.
273 * This function is intended to be used with mergesort(3) to sort an
274 * array of pointers to struct got_tree_entry objects.
275 */
276static int
277sort_tree_entries_the_way_git_likes_it(const void *arg1, const void *arg2)
278{
279 struct got_tree_entry * const *te1 = arg1;
280 struct got_tree_entry * const *te2 = arg2;
281 char name1[NAME_MAX255 + 2];
282 char name2[NAME_MAX255 + 2];
283
284 strlcpy(name1, (*te1)->name, sizeof(name1));
285 strlcpy(name2, (*te2)->name, sizeof(name2));
286 if (S_ISDIR((*te1)->mode)(((*te1)->mode & 0170000) == 0040000))
287 strlcat(name1, "/", sizeof(name1));
288 if (S_ISDIR((*te2)->mode)(((*te2)->mode & 0170000) == 0040000))
289 strlcat(name2, "/", sizeof(name2));
290 return strcmp(name1, name2);
291}
292
293const struct got_error *
294got_object_tree_create(struct got_object_id **id,
295 struct got_pathlist_head *paths, int nentries, struct got_repository *repo)
296{
297 const struct got_error *err = NULL((void *)0);
298 char modebuf[sizeof("100644 ")];
299 SHA1_CTX sha1_ctx;
300 char *header = NULL((void *)0);
301 size_t headerlen, len = 0, n;
302 FILE *treefile = NULL((void *)0);
303 struct got_pathlist_entry *pe;
304 struct got_tree_entry **sorted_entries;
305 struct got_tree_entry *te;
306 int i;
307
308 *id = NULL((void *)0);
309
310 SHA1Init(&sha1_ctx);
311
312 sorted_entries = calloc(nentries, sizeof(struct got_tree_entry *));
313 if (sorted_entries == NULL((void *)0))
314 return got_error_from_errno("calloc");
315
316 i = 0;
317 TAILQ_FOREACH(pe, paths, entry)for((pe) = ((paths)->tqh_first); (pe) != ((void *)0); (pe)
= ((pe)->entry.tqe_next))
318 sorted_entries[i++] = pe->data;
319 mergesort(sorted_entries, nentries, sizeof(struct got_tree_entry *),
320 sort_tree_entries_the_way_git_likes_it);
321
322 for (i = 0; i < nentries; i++) {
323 te = sorted_entries[i];
324 err = te_mode2str(modebuf, sizeof(modebuf), te);
325 if (err)
326 goto done;
327 len += strlen(modebuf) + strlen(te->name) + 1 +
328 SHA1_DIGEST_LENGTH20;
329 }
330
331 if (asprintf(&header, "%s %zd", GOT_OBJ_LABEL_TREE"tree", len) == -1) {
332 err = got_error_from_errno("asprintf");
333 goto done;
334 }
335 headerlen = strlen(header) + 1;
336 SHA1Update(&sha1_ctx, header, headerlen);
337
338 treefile = got_opentemp();
339 if (treefile == NULL((void *)0)) {
340 err = got_error_from_errno("got_opentemp");
341 goto done;
342 }
343
344 n = fwrite(header, 1, headerlen, treefile);
345 if (n != headerlen) {
346 err = got_ferror(treefile, GOT_ERR_IO6);
347 goto done;
348 }
349
350 for (i = 0; i < nentries; i++) {
351 te = sorted_entries[i];
352 err = te_mode2str(modebuf, sizeof(modebuf), te);
353 if (err)
354 goto done;
355 len = strlen(modebuf);
356 n = fwrite(modebuf, 1, len, treefile);
357 if (n != len) {
358 err = got_ferror(treefile, GOT_ERR_IO6);
359 goto done;
360 }
361 SHA1Update(&sha1_ctx, modebuf, len);
362
363 len = strlen(te->name) + 1; /* must include NUL */
364 n = fwrite(te->name, 1, len, treefile);
365 if (n != len) {
366 err = got_ferror(treefile, GOT_ERR_IO6);
367 goto done;
368 }
369 SHA1Update(&sha1_ctx, te->name, len);
370
371 len = SHA1_DIGEST_LENGTH20;
372 n = fwrite(te->id.sha1, 1, len, treefile);
373 if (n != len) {
374 err = got_ferror(treefile, GOT_ERR_IO6);
375 goto done;
376 }
377 SHA1Update(&sha1_ctx, te->id.sha1, len);
378 }
379
380 *id = malloc(sizeof(**id));
381 if (*id == NULL((void *)0)) {
382 err = got_error_from_errno("malloc");
383 goto done;
384 }
385 SHA1Final((*id)->sha1, &sha1_ctx);
386
387 if (fflush(treefile) != 0) {
388 err = got_error_from_errno("fflush");
389 goto done;
390 }
391 rewind(treefile);
392
393 err = create_object_file(*id, treefile, repo);
394done:
395 free(header);
396 free(sorted_entries);
397 if (treefile && fclose(treefile) == EOF(-1) && err == NULL((void *)0))
398 err = got_error_from_errno("fclose");
399 if (err) {
400 free(*id);
401 *id = NULL((void *)0);
402 }
403 return err;
404}
405
406const struct got_error *
407got_object_commit_create(struct got_object_id **id,
408 struct got_object_id *tree_id, struct got_object_id_queue *parent_ids,
409 int nparents, const char *author, time_t author_time,
410 const char *committer, time_t committer_time,
411 const char *logmsg, struct got_repository *repo)
412{
413 const struct got_error *err = NULL((void *)0);
414 SHA1_CTX sha1_ctx;
415 char *header = NULL((void *)0), *tree_str = NULL((void *)0);
416 char *author_str = NULL((void *)0), *committer_str = NULL((void *)0);
417 char *id_str = NULL((void *)0);
418 size_t headerlen, len = 0, n;
419 FILE *commitfile = NULL((void *)0);
420 struct got_object_qid *qid;
421 char *msg0, *msg;
422
423 *id = NULL((void *)0);
424
425 SHA1Init(&sha1_ctx);
426
427 msg0 = strdup(logmsg);
1
Memory is allocated
→
428 if (msg0 == NULL((void *)0))
2
←
Assuming 'msg0' is not equal to NULL
→
3
←
Taking false branch
→
429 return got_error_from_errno("strdup");
430 msg = msg0;
431
432 while (isspace((unsigned char)msg[0]))
4
←
Loop condition is false. Execution continues on line 434
→
433 msg++;
434 len = strlen(msg);
435 while (len > 0 && isspace((unsigned char)msg[len - 1])) {
5
←
Assuming 'len' is <= 0
→
436 msg[len - 1] = '\0';
437 len--;
438 }
439
440 if (asprintf(&author_str, "%s%s %lld +0000\n",
6
←
Assuming the condition is true
→
7
←
Taking true branch
→
441 GOT_COMMIT_LABEL_AUTHOR"author ", author, (long long)author_time) == -1)
442 return got_error_from_errno("asprintf");
8
←
Potential leak of memory pointed to by 'msg'
443
444 if (asprintf(&committer_str, "%s%s %lld +0000\n",
445 GOT_COMMIT_LABEL_COMMITTER"committer ", committer ? committer : author,
446 (long long)(committer ? committer_time : author_time))
447 == -1) {
448 err = got_error_from_errno("asprintf");
449 goto done;
450 }
451
452 len = strlen(GOT_COMMIT_LABEL_TREE"tree ") + SHA1_DIGEST_STRING_LENGTH(20 * 2 + 1) +
453 nparents *
454 (strlen(GOT_COMMIT_LABEL_PARENT"parent ") + SHA1_DIGEST_STRING_LENGTH(20 * 2 + 1)) +
455 + strlen(author_str) + strlen(committer_str) + 2 + strlen(msg);
456
457 if (asprintf(&header, "%s %zd", GOT_OBJ_LABEL_COMMIT"commit", len) == -1) {
458 err = got_error_from_errno("asprintf");
459 goto done;
460 }
461 headerlen = strlen(header) + 1;
462 SHA1Update(&sha1_ctx, header, headerlen);
463
464 commitfile = got_opentemp();
465 if (commitfile == NULL((void *)0)) {
466 err = got_error_from_errno("got_opentemp");
467 goto done;
468 }
469
470 n = fwrite(header, 1, headerlen, commitfile);
471 if (n != headerlen) {
472 err = got_ferror(commitfile, GOT_ERR_IO6);
473 goto done;
474 }
475
476 err = got_object_id_str(&id_str, tree_id);
477 if (err)
478 goto done;
479 if (asprintf(&tree_str, "%s%s\n", GOT_COMMIT_LABEL_TREE"tree ", id_str)
480 == -1) {
481 err = got_error_from_errno("asprintf");
482 goto done;
483 }
484 len = strlen(tree_str);
485 SHA1Update(&sha1_ctx, tree_str, len);
486 n = fwrite(tree_str, 1, len, commitfile);
487 if (n != len) {
488 err = got_ferror(commitfile, GOT_ERR_IO6);
489 goto done;
490 }
491
492 if (parent_ids) {
493 SIMPLEQ_FOREACH(qid, parent_ids, entry)for((qid) = ((parent_ids)->sqh_first); (qid) != ((void *)0
); (qid) = ((qid)->entry.sqe_next)) {
494 char *parent_str = NULL((void *)0);
495
496 free(id_str);
497
498 err = got_object_id_str(&id_str, qid->id);
499 if (err)
500 goto done;
501 if (asprintf(&parent_str, "%s%s\n",
502 GOT_COMMIT_LABEL_PARENT"parent ", id_str) == -1) {
503 err = got_error_from_errno("asprintf");
504 goto done;
505 }
506 len = strlen(parent_str);
507 SHA1Update(&sha1_ctx, parent_str, len);
508 n = fwrite(parent_str, 1, len, commitfile);
509 if (n != len) {
510 err = got_ferror(commitfile, GOT_ERR_IO6);
511 free(parent_str);
512 goto done;
513 }
514 free(parent_str);
515 }
516 }
517
518 len = strlen(author_str);
519 SHA1Update(&sha1_ctx, author_str, len);
520 n = fwrite(author_str, 1, len, commitfile);
521 if (n != len) {
522 err = got_ferror(commitfile, GOT_ERR_IO6);
523 goto done;
524 }
525
526 len = strlen(committer_str);
527 SHA1Update(&sha1_ctx, committer_str, len);
528 n = fwrite(committer_str, 1, len, commitfile);
529 if (n != len) {
530 err = got_ferror(commitfile, GOT_ERR_IO6);
531 goto done;
532 }
533
534 SHA1Update(&sha1_ctx, "\n", 1);
535 n = fwrite("\n", 1, 1, commitfile);
536 if (n != 1) {
537 err = got_ferror(commitfile, GOT_ERR_IO6);
538 goto done;
539 }
540
541 len = strlen(msg);
542 SHA1Update(&sha1_ctx, msg, len);
543 n = fwrite(msg, 1, len, commitfile);
544 if (n != len) {
545 err = got_ferror(commitfile, GOT_ERR_IO6);
546 goto done;
547 }
548
549 SHA1Update(&sha1_ctx, "\n", 1);
550 n = fwrite("\n", 1, 1, commitfile);
551 if (n != 1) {
552 err = got_ferror(commitfile, GOT_ERR_IO6);
553 goto done;
554 }
555
556 *id = malloc(sizeof(**id));
557 if (*id == NULL((void *)0)) {
558 err = got_error_from_errno("malloc");
559 goto done;
560 }
561 SHA1Final((*id)->sha1, &sha1_ctx);
562
563 if (fflush(commitfile) != 0) {
564 err = got_error_from_errno("fflush");
565 goto done;
566 }
567 rewind(commitfile);
568
569 err = create_object_file(*id, commitfile, repo);
570done:
571 free(msg0);
572 free(header);
573 free(tree_str);
574 free(author_str);
575 free(committer_str);
576 if (commitfile && fclose(commitfile) == EOF(-1) && err == NULL((void *)0))
577 err = got_error_from_errno("fclose");
578 if (err) {
579 free(*id);
580 *id = NULL((void *)0);
581 }
582 return err;
583}
584
585const struct got_error *
586got_object_tag_create(struct got_object_id **id,
587 const char *tag_name, struct got_object_id *object_id, const char *tagger,
588 time_t tagger_time, const char *tagmsg, struct got_repository *repo)
589{
590 const struct got_error *err = NULL((void *)0);
591 SHA1_CTX sha1_ctx;
592 char *header = NULL((void *)0);
593 char *tag_str = NULL((void *)0), *tagger_str = NULL((void *)0);
594 char *id_str = NULL((void *)0), *obj_str = NULL((void *)0), *type_str = NULL((void *)0);
595 size_t headerlen, len = 0, n;
596 FILE *tagfile = NULL((void *)0);
597 char *msg0 = NULL((void *)0), *msg;
598 const char *obj_type_str;
599 int obj_type;
600
601 *id = NULL((void *)0);
602
603 SHA1Init(&sha1_ctx);
604
605 err = got_object_id_str(&id_str, object_id);
606 if (err)
607 goto done;
608 if (asprintf(&obj_str, "%s%s\n", GOT_TAG_LABEL_OBJECT"object ", id_str) == -1) {
609 err = got_error_from_errno("asprintf");
610 goto done;
611 }
612
613 err = got_object_get_type(&obj_type, repo, object_id);
614 if (err)
615 goto done;
616
617 switch (obj_type) {
618 case GOT_OBJ_TYPE_BLOB3:
619 obj_type_str = GOT_OBJ_LABEL_BLOB"blob";
620 break;
621 case GOT_OBJ_TYPE_TREE2:
622 obj_type_str = GOT_OBJ_LABEL_TREE"tree";
623 break;
624 case GOT_OBJ_TYPE_COMMIT1:
625 obj_type_str = GOT_OBJ_LABEL_COMMIT"commit";
626 break;
627 case GOT_OBJ_TYPE_TAG4:
628 obj_type_str = GOT_OBJ_LABEL_TAG"tag";
629 break;
630 default:
631 err = got_error(GOT_ERR_OBJ_TYPE11);
632 goto done;
633 }
634
635 if (asprintf(&type_str, "%s%s\n", GOT_TAG_LABEL_TYPE"type ",
636 obj_type_str) == -1) {
637 err = got_error_from_errno("asprintf");
638 goto done;
639 }
640
641 if (asprintf(&tag_str, "%s%s\n", GOT_TAG_LABEL_TAG"tag ", tag_name) == -1) {
642 err = got_error_from_errno("asprintf");
643 goto done;
644 }
645
646 if (asprintf(&tagger_str, "%s%s %lld +0000\n",
647 GOT_TAG_LABEL_TAGGER"tagger ", tagger, (long long)tagger_time) == -1)
648 return got_error_from_errno("asprintf");
649
650 msg0 = strdup(tagmsg);
651 if (msg0 == NULL((void *)0)) {
652 err = got_error_from_errno("strdup");
653 goto done;
654 }
655 msg = msg0;
656
657 while (isspace((unsigned char)msg[0]))
658 msg++;
659
660 len = strlen(obj_str) + strlen(type_str) + strlen(tag_str) +
661 strlen(tagger_str) + 1 + strlen(msg) + 1;
662
663 if (asprintf(&header, "%s %zd", GOT_OBJ_LABEL_TAG"tag", len) == -1) {
664 err = got_error_from_errno("asprintf");
665 goto done;
666 }
667
668 headerlen = strlen(header) + 1;
669 SHA1Update(&sha1_ctx, header, headerlen);
670
671 tagfile = got_opentemp();
672 if (tagfile == NULL((void *)0)) {
673 err = got_error_from_errno("got_opentemp");
674 goto done;
675 }
676
677 n = fwrite(header, 1, headerlen, tagfile);
678 if (n != headerlen) {
679 err = got_ferror(tagfile, GOT_ERR_IO6);
680 goto done;
681 }
682 len = strlen(obj_str);
683 SHA1Update(&sha1_ctx, obj_str, len);
684 n = fwrite(obj_str, 1, len, tagfile);
685 if (n != len) {
686 err = got_ferror(tagfile, GOT_ERR_IO6);
687 goto done;
688 }
689 len = strlen(type_str);
690 SHA1Update(&sha1_ctx, type_str, len);
691 n = fwrite(type_str, 1, len, tagfile);
692 if (n != len) {
693 err = got_ferror(tagfile, GOT_ERR_IO6);
694 goto done;
695 }
696
697 len = strlen(tag_str);
698 SHA1Update(&sha1_ctx, tag_str, len);
699 n = fwrite(tag_str, 1, len, tagfile);
700 if (n != len) {
701 err = got_ferror(tagfile, GOT_ERR_IO6);
702 goto done;
703 }
704
705 len = strlen(tagger_str);
706 SHA1Update(&sha1_ctx, tagger_str, len);
707 n = fwrite(tagger_str, 1, len, tagfile);
708 if (n != len) {
709 err = got_ferror(tagfile, GOT_ERR_IO6);
710 goto done;
711 }
712
713 SHA1Update(&sha1_ctx, "\n", 1);
714 n = fwrite("\n", 1, 1, tagfile);
715 if (n != 1) {
716 err = got_ferror(tagfile, GOT_ERR_IO6);
717 goto done;
718 }
719
720 len = strlen(msg);
721 SHA1Update(&sha1_ctx, msg, len);
722 n = fwrite(msg, 1, len, tagfile);
723 if (n != len) {
724 err = got_ferror(tagfile, GOT_ERR_IO6);
725 goto done;
726 }
727
728 SHA1Update(&sha1_ctx, "\n", 1);
729 n = fwrite("\n", 1, 1, tagfile);
730 if (n != 1) {
731 err = got_ferror(tagfile, GOT_ERR_IO6);
732 goto done;
733 }
734
735 *id = malloc(sizeof(**id));
736 if (*id == NULL((void *)0)) {
737 err = got_error_from_errno("malloc");
738 goto done;
739 }
740 SHA1Final((*id)->sha1, &sha1_ctx);
741
742 if (fflush(tagfile) != 0) {
743 err = got_error_from_errno("fflush");
744 goto done;
745 }
746 rewind(tagfile);
747
748 err = create_object_file(*id, tagfile, repo);
749done:
750 free(msg0);
751 free(header);
752 free(obj_str);
753 free(tagger_str);
754 if (tagfile && fclose(tagfile) == EOF(-1) && err == NULL((void *)0))
755 err = got_error_from_errno("fclose");
756 if (err) {
757 free(*id);
758 *id = NULL((void *)0);
759 }
760 return err;
761}